async def confirm_workflow(self) -> None:
try:
workflow.onstart(self.workflow)
await self.confirm_layout()
finally:
workflow.onclose(self.workflow)
self.workflow = None
async def session_handler(iface, sid):
reader = None
ctx = Context(iface, sid)
while True:
try:
# wait for new message, if needed, and find handler
if not reader:
reader = ctx.getreader()
await reader.aopen()
try:
handler, args = workflow_handlers[reader.type]
except KeyError:
handler, args = unexpected_msg, ()
w = handler(ctx, reader, *args)
try:
workflow.onstart(w)
await w
finally:
workflow.onclose(w)
except UnexpectedMessageError as exc:
# retry with opened reader from the exception
reader = exc.reader
continue
except FailureError as exc:
# we log FailureError as warning, not as exception
log.warning(__name__, 'failure: %s', exc.message)
except Exception as exc:
# sessions are never closed by raised exceptions
log.exception(__name__, exc)
# read new message in next iteration
reader = None
async def confirm(self) -> None:
confirmed = False
try:
confirmed = await self.confirm_layout()
finally:
self.confirmed = confirmed
workflow.onclose(self.task)
async def session_handler(iface: WireInterface, sid: int) -> None:
reader = None
ctx = Context(iface, sid)
while True:
try:
# wait for new message, if needed, and find handler
if not reader:
reader = ctx.make_reader()
await reader.aopen()
try:
handler, args = workflow_handlers[reader.type]
except KeyError:
handler, args = unexpected_msg, ()
m = utils.unimport_begin()
w = handler(ctx, reader, *args)
try:
workflow.onstart(w)
await w
finally:
workflow.onclose(w)
utils.unimport_end(m)
except UnexpectedMessageError as exc:
# retry with opened reader from the exception
reader = exc.reader
continue
except Error as exc:
# we log wire.Error as warning, not as exception
if __debug__:
log.warning(__name__, "failure: %s", exc.message)
except Exception as exc:
# sessions are never closed by raised exceptions
if __debug__:
log.exception(__name__, exc)
# read new message in next iteration
reader = None
def kill(self) -> None:
if self.task is not None:
workflow.onclose(self.task)
loop.close(self.task)
self.task = None
